/**
 * Software License, Version 1.0
 * 
 * Copyright 2003 The Trustees of Indiana University.  All rights reserved.
 * 
 *
 *Redistribution and use in source and binary forms, with or without 
 *modification, are permitted provided that the following conditions are met:
 *
 *1) All redistributions of source code must retain the above copyright notice,
 * the list of authors in the original source code, this list of conditions and
 * the disclaimer listed in this license;
 *2) All redistributions in binary form must reproduce the above copyright 
 * notice, this list of conditions and the disclaimer listed in this license in
 * the documentation and/or other materials provided with the distribution;
 *3) Any documentation included with all redistributions must include the 
 * following acknowledgement:
 *
 *"This product includes software developed by the Community Grids Lab. For 
 * further information contact the Community Grids Lab at 
 * http://communitygrids.iu.edu/."
 *
 * Alternatively, this acknowledgement may appear in the software itself, and 
 * wherever such third-party acknowledgments normally appear.
 * 
 *4) The name Indiana University or Community Grids Lab or NaradaBrokering, 
 * shall not be used to endorse or promote products derived from this software 
 * without prior written permission from Indiana University.  For written 
 * permission, please contact the Advanced Research and Technology Institute 
 * ("ARTI") at 351 West 10th Street, Indianapolis, Indiana 46202.
 *5) Products derived from this software may not be called NaradaBrokering, 
 * nor may Indiana University or Community Grids Lab or NaradaBrokering appear
 * in their name, without prior written permission of ARTI.
 * 
 *
 * Indiana University provides no reassurances that the source code provided 
 * does not infringe the patent or any other intellectual property rights of 
 * any other entity.  Indiana University disclaims any liability to any 
 * recipient for claims brought by any other entity based on infringement of 
 * intellectual property rights or otherwise.  
 *
 *LICENSEE UNDERSTANDS THAT SOFTWARE IS PROVIDED "AS IS" FOR WHICH NO 
 *WARRANTIES AS TO CAPABILITIES OR ACCURACY ARE MADE. INDIANA UNIVERSITY GIVES
 *NO WARRANTIES AND MAKES NO REPRESENTATION THAT SOFTWARE IS FREE OF 
 *INFRINGEMENT OF THIRD PARTY PATENT, COPYRIGHT, OR OTHER PROPRIETARY RIGHTS. 
 *INDIANA UNIVERSITY MAKES NO WARRANTIES THAT SOFTWARE IS FREE FROM "BUGS", 
 *"VIRUSES", "TROJAN HORSES", "TRAP DOORS", "WORMS", OR OTHER HARMFUL CODE.  
 *LICENSEE ASSUMES THE ENTIRE RISK AS TO THE PERFORMANCE OF SOFTWARE AND/OR 
 *ASSOCIATED MATERIALS, AND TO THE PERFORMANCE AND VALIDITY OF INFORMATION 
 *GENERATED USING SOFTWARE.
 */
package cgl.narada.transport.sslHttpBase;

/**
 * Aids in measurement of ssl link performance.
 * @author John Yin
 * $Date$ 
 * $Revision$
 */

public class LinkMessagePerf extends LinkMessage {

    public static final byte TRANSPORT_PERFORMANCE_TYPE = 3;

    public static final byte PERF_REQUEST  = 0;
    public static final byte PERF_RESPONSE = 1;

    private byte   m_perfMessageType = PERF_REQUEST;
    private byte[] m_perfPayload = null;

    /**
     * ---------------------------------------------------------------------
     */
    public LinkMessagePerf(String channelID) {
        super(channelID);
        setMessageType(TRANSPORT_PERFORMANCE_TYPE);
    }

    /**
     * ---------------------------------------------------------------------
     */
    public LinkMessagePerf(String channelID,byte perfMessageType) {
        this(channelID);
        m_perfMessageType = perfMessageType;
    }

    /**
     * ---------------------------------------------------------------------
     */
    public void setPayload(byte[] payload) {
        m_perfPayload = payload;
    }

    /**
     * ---------------------------------------------------------------------
     */
    public byte[] toBytes() {
        constructMessage();
        return super.toBytes();
    }

    /**
     * ---------------------------------------------------------------------
     */
    public void constructMessage() {
        byte[] payload = new byte[m_perfPayload.length+1];

        payload[0] = m_perfMessageType;
        System.arraycopy(m_perfPayload,0,payload,1,m_perfPayload.length);
        super.setPayload(payload);
    }

    /**
     * ---------------------------------------------------------------------
     */
    public static void main(String[] args) throws java.io.IOException {
        byte[] payload = "Hello World".getBytes();

        LinkMessagePerf m = new LinkMessagePerf("system",LinkMessagePerf.PERF_RESPONSE);
        m.setPayload(payload);

        byte[] bytes = m.toBytes();

        LinkMessage m2 = new LinkMessage();
        m2.parseData(bytes);

        bytes = m2.getPayload();
        if (bytes[0] != PERF_RESPONSE) {
            System.out.println("Invalid perf msg type: "+bytes[0]);
        }

        for(int i=1;i < bytes.length;i++) {
            if (bytes[i] != payload[i-1]) {
                System.out.println("Invalid byte #"+i);
            }
        }
    }
}
